Pneumatic universal wind-chest with individually-operative valves.



No. 788,777. PATENTED MAY 2, I905.

A. KLANN.

PNEUMATIC UNIVERSAL WIND CHEST WITH INDIVIDUALLY OPERATIVE VALVES. APPMQMIION FILED NOV. 1e, 19,5% ,y j' 122,11, l J6 J' i I'. 10'/ J, [11a f2 Je s 6 L I 6.5 1g l/ ll l ew 3 v f a I 6 .f5 2 Y,

4 1 l v i Afl/W A i \\S 2 i IIIIIH' UNITED STATES latented May 2, 1905.

AUGUST KLANN, OF POMEROY, OHIO.

PNEUMATIC UNIVERSAL WIND-CHEST WITH lNDlVlDUALLY-OPERATIVE VALVES.

SPECIFICATION forming part of Letters Patent No. "788,777, dated May 2, 1905.

Application filed November 16,1904. Serial No. 233,009.

To all whom, t may concern,.-

Be it known that I, AUGUST KLANN, a citi- Zen of the United States, residing at Poincroy, in the county of Meigs and State of Ohio, have invented certain new and use'l'ul Improvements in Pneumatic Universal find- Chests with Individually-Operative Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The objecto'f this invention is to provide an improved pneumatic organ mechanism in which the wind-chest is provided with pneumatic-valves for opening and closing the openings to the pipes, said valves being rendered operative or inoperative by the pressure of the air in the wind-chest and controlled by the stops and key-manual In other words, it is the aim of the invention to provide an improved universal wind-chest with individually operative or selective valves.

The invention is embodied in the construction hereinafter described without being limited to the precise details oi construction shown in the accompanying drawings or stated in the description.

In the said drawings, Figure 1 is a sectional view of the wind-chest, taken on line fr x, Fig. 2. Fig. 2 is a sectional view of the same, taken on the line 'y y, Fig. l. Fig. 3 is a detail side view, on a larger scale, of a pneumatic-valve. Fig. 4 is a sectional view oi the same.

In the views, l designates the wind-chest proper, that receives compressed air from the bellows, as usual. Set in rows of openings In in the upper board of the wind-chest are the usual reed-pipes for producing the tone in different pitch and qualities, as dulciana, clarion, &c. Each of the openings to the pipes is provided with a pneumatically-operative valve 2, sometimes called a pneumatic The pneumatics are mounted on tubes 3, perforated, as seen at 3a, Fig. 4, to communicate with the interior of the pneumatic.

4 designates an auxiliary frame constituting the stop-chest, that communicates with the main chest l through an opening 4'. In

the upper board of the main chest are grooves 5, having their under sides closed with ilexible strips 5, on which are secured metallic loops 5b. On the pneumatics 2 are stii'l pins 2a, that proj ect horizontally through the loops 5b, so that when the grooves are initiated with compressed air, as hereinafter described, the pneumatics are free to operate and open the air-passages to the pipes; but when the grooves are deflated of compressed air or pressed upward by the compressed air of the wind-chest the loops by engaging the pins 2u preclude the operation of the pneumatics. Pneumatic-valves in open position are seen in the right-hand portion of Fig. l, and similar valves in closed position are seen in the left-hand portion oit that view.

The grooves 5 communicate through a passage 5" in the vertical wall of the windchest I and lower wall of the auxiliary chest 4 and terminate in a cross-passage 5d, that opens at one end in the auxiliary chest 4 and at the other end into the atmosphere. The opposite ends of the cross-passage 5d are opened and closed by valves 4b and 4", controlled by a pneumatic 4, operated by the organ-stops in a well-understood manner. By opening the valve 4b and admitting the compressed air of the wind-chest through the passages 5d and 5 to the groove 5 a particular series of pneumatics 2 belonging to a register or stop ol pipes becomes operative, and by closing the valve 4b (thereby reducing the pressurel in the grrove 5 to atmospheric only) the loops 5h are thrown and hel d upward and the pneumatics 2 rendered inoperative.

6 designates a supplemental chamber or frame constituting the manual-chest, which, like the auxiliary chamber 4, communicates with the main chest I through an opening GL. The pipe 3 communicates through an opening 3 and a cross-opening 3C with the atmosphere and with the interior of the chamber 6 g but the terminals of the cross-opening 3" are controlled by valves 6b and 6, operated by a pneumatic 6d. The pneumatic 6d is operated in any well-known manner by the key of the organ-manual or its equivalent. l Ihen the valve 6b closes the inner terminal IOO of the cross-opening 3C and the outer terminal is opened, the pressure in the pipe 3 is reduced to atmospheric. Hence the preponderating pressure in the wind-chest will operate those pneuinatics 2 that are rendered operative by the pressure in the grooves 5 g but those pneumaties 2 that are engaged by loops 5b will not operate, Hence only those tones with the qualities desired and permitted by the operation of the stops will be produced. From the construction shown and described, therefore, it will be observed that the windchest may be characterized as universal with individually-operative valves.

What I claim, and desire to secure by Letters Patent, is

l. In an organ, the combination of a univers al wind-chest, a plurality of series of stoppipes connecting therewith, valves for opening and closing said stop-pipes, an air-pressure passage 5 tor each of said series of stoppipes, a flexible strip 5a forming a side of said passage and adapted to be operated by variation of the pressure in said passage, means on said llexible strip for preventing or permititng the operation of said valves, the pressure in said air-passages being controlled by the organ-stops.

2. In an organ, the combination of a universal wind-chest, a plurality of series of stop-pipes connecting therewith, pneumatically-operative valves for opening and closing said stop-pipes, an air-pressure passage 5 for each of said series of stop-pipes, ilegible strips 5a forming a side of said passage and adapted to be operated by variation of pressure in said passage, means on said flexible strips for preventing or permitting the operation of said valves, an air tube or passage 3 on which said valves are mounted and with which the pneumatics of the valves communicate, and means operated by the keys of the key-manual for controlling the pressure in said tubes or passages 3.

3. In an organ, the combination of a universal wind-chest, a plurality of series ol stop-pipes connecting therewith, valves for opening and closing said stop-pipes, an airpressure passage 5 Jfor each of said series of stop-pipes, flexible strips 5l forming a side of said passage, means on said flexible strip for preventing or permitting the operation of said valves, and means operated by the organ-stops for admitting and cutting oil' the pressure of the wind-chest to said passages 5.

il. In an organ, the combination ol a universal wind-chest, a plurality of series ol stop-pipes connecting therewith, tubes 3 transverse said stop-pipes and within said wind-chest, a pneumatic-valve for each of said stop-pipes mounted on said tubes and communicating therewith and to be operated by the pressure in the wind-chest to close said stop-pipes and by reduction oi pressure in said tube 3 to open said stoppipes, and devices operated by the pressure of the wind-chest for preventing or permitting the operation of said pneumatic-valves and means for operating said last-named devices.

5. In an organ, the combination of a universal wind-chest, a plurality of series of stop-pipes connecting therewith, pneumaticvalves for opening and closing said stoppipes, an air-pressure passage 5 Vfor each of said series ol' stop-pipes, Vflexible strips 5 forming a side of said passage, means on said flexible strip for preventing or permitting the operation of said valves, means operated by the organ-stops for admitting and cutting oil the pressure of the wind-chest to said pas? sage 5, tubes or passages 3 transverse the series oi stop-pipes on which said pneumaticvalves are mounted and connected to be operated by variation of air-pressure therein, and means operated by the keys of the keymanual of the organ for admitting to and cutting oilV1 air-pressure of the wind-chest to said pipes or passages 3.

In testimony whereof I affix my signature in presence o'l two witnesses.

AUGUST KLANN /Vitnesses:

C. A. IHLE, C. IHLE. 

